Doctor , here's my report for my IVP examination .   Let me have a look . Can you see there's a stone in your kidney ?   Oh , yes , is it dangerous ?   No , but it's painful .   Do I have to have an operation ?   No , it's not necessary since the stone is not big .   Good , I can still attend the Olympic Games .   Yes , you're lucky . But you should go to the Ultrasonic Department to disperse the stone . Meanwhile , I'll give you some herbal medicine .   Oh , I've heard a lot about the Chinese herbal medicine . I believe it will work . 